中文版 English
Position:首页 > Technology  > Theoretical research

Technical Study of DELTA Plasma Spraying Nano-ZrO2 Coatings

Time:2014-01-07 09:48:31  From:CNKI  Author:CUI Chong,HOU Wei-ao,GUO Jun-f


Abstract: The nano-ZrO2-7%Y2O3 powder produced by domestic company was used to deposit nano-ZrO2 coatings with novel porosity via the three-anode-one-cathode plasma spray system (Delta gun). The orthogonal table L934 was used. The influence of plasma parameters on the porosity and the influence of porosity on the coating bonding strength were studied in detail. It was found that with the help of nozzle of 7mm in diameter, rapid jet velocity more than 250 m/s and high powder feed rate, the porosity of the ZrO2 coatings were among 14.8%~26.2%, the bonding strength were among 13.4~30MPa. The plasma power, flow rate of H2 and powder feed rate were important factors, the stand-off distance within 100~140mm had no significant influence to the coating property.

Keywords: Nano-ZrO2;Delta gun;Novel porosity;Thermal barrier coating


本站文章未经允许不得转载;如欲转载请注明出处,北京桑尧科技开发有限公司网址:http://en.sunspraying.com/

Support
返回首页
Home page
发表评论 共有条评论
用户名: 密码:
验证码: 匿名发表
Information
Article
    无相关信息
Update
Hot